Average annual temperature is 18.5 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: 1.0 °C
Number of sunny days: 83 days
Number of rainy days: 282 days
Look at detailed online map of Ban Houaysan
* Weather data for Ban Houaysan Laos is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 23.4 | 28.1 | 29.3 | 31.7 | 31.7 | 31.3 | 29.8 | 28.7 | 26.6 | 27.7 | 26.5 | 25.7 |
| Average daytime temperature (°C) | 17.5 | 21.9 | 23.7 | 28.0 | 27.7 | 27.1 | 27.7 | 25.6 | 24.0 | 23.0 | 21.3 | 19.6 |
| Average temperature (°C) | 11.2 | 15.3 | 17.3 | 21.5 | 22.2 | 21.8 | 22.5 | 21.3 | 20.1 | 18.4 | 16.1 | 14.1 |
| Average night temperature (°C) | 6.1 | 10.3 | 13.0 | 17.3 | 18.6 | 18.7 | 18.8 | 18.5 | 17.3 | 15.0 | 12.3 | 9.6 |
| Absolute minimum temperature (°C) | 1.0 | 4.2 | 7.4 | 14.1 | 15.3 | 17.0 | 17.3 | 16.4 | 16.1 | 11.7 | 6.7 | 1.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.0 | 8.6 | 8.6 | 9.8 | 9.2 | 7.5 | 9.8 | 6.6 | 7.4 | 8.1 | 8.5 | 7.7 |
| Precipitation (mm) | 13 | 42 | 65 | 89 | 145 | 293 | 147 | 245 | 285 | 72 | 40 | 21 |
| Sunny days | 19 | 15 | 5 | 6 | 3 | 0 | 0 | 2 | 1 | 6 | 10 | 16 |
| Rainy days | 12 | 13 | 26 | 24 | 28 | 30 | 31 | 29 | 29 | 25 | 20 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ban Houaysan is at